Are you talking about a Futeko provided PSU or a Himedia original PSU purchased via another source? If it is Futeko's they will answer all your questions.
The PSU can be replaced anyway with another compatible unit. Recommend a quality build 12V 3A (or 4A) earthed PSU as a replacement, specifically when using an Internal HDD with it. You need to try if the player was affected or not yourself, nobody can tell. There is a decent chance that it survived.